[INFO] cloning repository spacekookie/thingymabobby [INFO] running `"git" "clone" "--bare" "git://github.com/spacekookie/thingymabobby.git" "work/cache/sources/gh/spacekookie/thingymabobby"` [INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/spacekookie/thingymabobby'... [INFO] running `"git" "clone" "work/cache/sources/gh/spacekookie/thingymabobby" "work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/gh/spacekookie/thingymabobby"` [INFO] [stderr] Cloning into 'work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/gh/spacekookie/thingymabobby'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/spacekookie/thingymabobby" "work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/gh/spacekookie/thingymabobby"` [INFO] [stderr] Cloning into 'work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/gh/spacekookie/thingymabobby'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 9bf7891b977ec60c0909fe6bbcf68457b6d5e8aa [INFO] sha for GitHub repo spacekookie/thingymabobby: 9bf7891b977ec60c0909fe6bbcf68457b6d5e8aa [INFO] validating manifest of spacekookie/thingymabobby on toolchain master#9f06855064ed06a50c496577b21ca50f92a2e67d [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+9f06855064ed06a50c496577b21ca50f92a2e67d-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of spacekookie/thingymabobby on toolchain try#d3301713b54af69ca9de941a8c6b0d8287dbd6df [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing spacekookie/thingymabobby [INFO] finished frobbing spacekookie/thingymabobby [INFO] frobbed toml for spacekookie/thingymabobby written to work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/gh/spacekookie/thingymabobby/Cargo.toml [INFO] started frobbing spacekookie/thingymabobby [INFO] finished frobbing spacekookie/thingymabobby [INFO] frobbed toml for spacekookie/thingymabobby written to work/ex/pr-61874/sources/try#d3301713b54af69ca9de941a8c6b0d8287dbd6df/gh/spacekookie/thingymabobby/Cargo.toml [INFO] crate spacekookie/thingymabobby already has a lockfile, it will not be regenerated [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+9f06855064ed06a50c496577b21ca50f92a2e67d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded daumdic v0.3.0 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+d3301713b54af69ca9de941a8c6b0d8287dbd6df-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] checking spacekookie/thingymabobby against master#9f06855064ed06a50c496577b21ca50f92a2e67d for pr-61874 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61874/worker-7/master#9f06855064ed06a50c496577b21ca50f92a2e67d:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61874/sources/master#9f06855064ed06a50c496577b21ca50f92a2e67d/gh/spacekookie/thingymabobby:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+9f06855064ed06a50c496577b21ca50f92a2e67d-alt" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] 54a7606b2c85e3935d0d17f740ec735f6c54a0f5e188e65c081a2f2f47620088 [INFO] running `"docker" "start" "-a" "54a7606b2c85e3935d0d17f740ec735f6c54a0f5e188e65c081a2f2f47620088"` [INFO] [stderr] Compiling num-traits v0.2.0 [INFO] [stderr] Compiling serde v1.0.27 [INFO] [stderr] Compiling itoa v0.3.4 [INFO] [stderr] Compiling procedural-masquerade v0.1.5 [INFO] [stderr] Checking utf-8 v0.7.2 [INFO] [stderr] Checking rustc-demangle v0.1.6 [INFO] [stderr] Compiling openssl-sys v0.9.26 [INFO] [stderr] Checking memchr v0.1.11 [INFO] [stderr] Checking encoding_rs v0.7.2 [INFO] [stderr] Checking relay v0.1.1 [INFO] [stderr] Checking dtoa-short v0.3.1 [INFO] [stderr] Checking servo_arc v0.1.0 [INFO] [stderr] Checking aho-corasick v0.5.3 [INFO] [stderr] Compiling cssparser v0.23.2 [INFO] [stderr] Compiling html5ever v0.22.0 [INFO] [stderr] Checking tokio-io v0.1.5 [INFO] [stderr] Checking mio v0.6.13 [INFO] [stderr] Compiling num-traits v0.1.43 [INFO] [stderr] Checking backtrace v0.3.5 [INFO] [stderr] Checking tendril v0.4.0 [INFO] [stderr] Checking thread-id v2.0.0 [INFO] [stderr] Checking libflate v0.1.14 [INFO] [stderr] Checking crypto-mac v0.4.0 [INFO] [stderr] Checking digest v0.6.2 [INFO] [stderr] Checking serde_urlencoded v0.5.1 [INFO] [stderr] Checking thread_local v0.2.7 [INFO] [stderr] Checking error-chain v0.11.0 [INFO] [stderr] Checking hmac v0.4.2 [INFO] [stderr] Checking sha-1 v0.4.1 [INFO] [stderr] Compiling string_cache_codegen v0.4.0 [INFO] [stderr] Compiling openssl v0.9.24 [INFO] [stderr] Checking tokio-core v0.1.12 [INFO] [stderr] Checking regex v0.1.80 [INFO] [stderr] Compiling cssparser-macros v0.3.0 [INFO] [stderr] Compiling mime_guess v2.0.0-alpha.3 [INFO] [stderr] Compiling selectors v0.19.0 [INFO] [stderr] Checking tokio-proto v0.1.1 [INFO] [stderr] Compiling string_cache v0.7.1 [INFO] [stderr] Checking hyper v0.11.18 [INFO] [stderr] error: failed to run custom build command for `mime_guess v2.0.0-alpha.3` [INFO] [stderr] [INFO] [stderr] Caused by: [INFO] [stderr] process didn't exit successfully: `/opt/crater/target/debug/build/mime_guess-0ebe7c80bfc83a9e/build-script-gen_mime_types` (exit code: 101) [INFO] [stderr] --- stderr [INFO] [stderr] thread 'main' panicked at 'called `Result::unwrap()` on an `Err` value: Os { code: 30, kind: Other, message: "Read-only file system" }', src/libcore/result.rs:999:5 [INFO] [stderr] stack backtrace: [INFO] [stderr] 0: 0x557231265b7b - backtrace::backtrace::libunwind::trace::hc6a4966d389b62be [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.29/src/backtrace/libunwind.rs:88 [INFO] [stderr] 1: 0x557231265b7b - backtrace::backtrace::trace_unsynchronized::h234cd6c2c95fa587 [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.29/src/backtrace/mod.rs:66 [INFO] [stderr] 2: 0x557231265b7b - std::sys_common::backtrace::_print::h2896bece16680b31 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:47 [INFO] [stderr] 3: 0x557231265b7b - std::sys_common::backtrace::print::h5f4d4b954705d426 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:36 [INFO] [stderr] 4: 0x557231265b7b - std::panicking::default_hook::{{closure}}::h3d52949e2d73c1aa [INFO] [stderr] at src/libstd/panicking.rs:198 [INFO] [stderr] 5: 0x55723126587c - std::panicking::default_hook::h4b88c02cc00064f5 [INFO] [stderr] at src/libstd/panicking.rs:212 [INFO] [stderr] 6: 0x557231266240 - std::panicking::rust_panic_with_hook::he5596ad1952b7279 [INFO] [stderr] at src/libstd/panicking.rs:475 [INFO] [stderr] 7: 0x557231265dc2 - std::panicking::continue_panic_fmt::h13f3a9aeaf0459c4 [INFO] [stderr] at src/libstd/panicking.rs:382 [INFO] [stderr] 8: 0x557231265ca6 - rust_begin_unwind [INFO] [stderr] at src/libstd/panicking.rs:309 [INFO] [stderr] 9: 0x55723127aded - core::panicking::panic_fmt::h35cf1b39b1635ed5 [INFO] [stderr] at src/libcore/panicking.rs:85 [INFO] [stderr] 10: 0x557231256338 - core::result::unwrap_failed::h0c99ff0cbcddce43 [INFO] [stderr] at /rustc/9f06855064ed06a50c496577b21ca50f92a2e67d/src/libcore/macros.rs:18 [INFO] [stderr] 11: 0x5572312252dc - core::result::Result::unwrap::h4828768d603d062a [INFO] [stderr] at /rustc/9f06855064ed06a50c496577b21ca50f92a2e67d/src/libcore/result.rs:800 [INFO] [stderr] 12: 0x55723122c405 - build_script_gen_mime_types::main::h1a0f9abfa0a3f0f9 [INFO] [stderr] at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/mime_guess-2.0.0-alpha.3/src/gen_mime_types.rs:22 [INFO] [stderr] 13: 0x557231248010 - std::rt::lang_start::{{closure}}::hd16ef2ebea23d8e3 [INFO] [stderr] at /rustc/9f06855064ed06a50c496577b21ca50f92a2e67d/src/libstd/rt.rs:64 [INFO] [stderr] 14: 0x557231265c93 - std::rt::lang_start_internal::{{closure}}::h97d240c87982728f [INFO] [stderr] at src/libstd/rt.rs:49 [INFO] [stderr] 15: 0x557231265c93 - std::panicking::try::do_call::h657ecdd23710c935 [INFO] [stderr] at src/libstd/panicking.rs:294 [INFO] [stderr] 16: 0x55723126803a - __rust_maybe_catch_panic [INFO] [stderr] at src/libpanic_unwind/lib.rs:82 [INFO] [stderr] 17: 0x55723126674d - std::panicking::try::h52772d620cb80373 [INFO] [stderr] at src/libstd/panicking.rs:273 [INFO] [stderr] 18: 0x55723126674d - std::panic::catch_unwind::hac02eb84ea8f3a3e [INFO] [stderr] at src/libstd/panic.rs:388 [INFO] [stderr] 19: 0x55723126674d - std::rt::lang_start_internal::h9fab34d7c96dfdc9 [INFO] [stderr] at src/libstd/rt.rs:48 [INFO] [stderr] 20: 0x557231247fe9 - std::rt::lang_start::hb34ffa5df4d4779b [INFO] [stderr] at /rustc/9f06855064ed06a50c496577b21ca50f92a2e67d/src/libstd/rt.rs:64 [INFO] [stderr] 21: 0x55723122da4a - main [INFO] [stderr] 22: 0x7fa5c46bd2e1 - __libc_start_main [INFO] [stderr] 23: 0x5572312054fa - _start [INFO] [stderr] 24: 0x0 - [INFO] [stderr] [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] warning[E0506]: cannot assign to `self.input.cached_token` because it is borrowed [INFO] [stderr] --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/cssparser-0.23.2/src/parser.rs:572:17 [INFO] [stderr] | [INFO] [stderr] 547 | pub fn next_including_whitespace_and_comments(&mut self) -> Result<&Token<'i>, BasicParseError<'i>> { [INFO] [stderr] | - let's call the lifetime of this reference `'1` [INFO] [stderr] ... [INFO] [stderr] 560 | Some(ref cached_token) [INFO] [stderr] | ---------------- borrow of `self.input.cached_token` occurs here [INFO] [stderr] ... [INFO] [stderr] 572 | self.input.cached_token = Some(CachedToken { [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^ assignment to borrowed `self.input.cached_token` occurs here [INFO] [stderr] ... [INFO] [stderr] 584 | Ok(token) [INFO] [stderr] | --------- returning this value requires that `self.input.cached_token.0` is borrowed for `'1` [INFO] [stderr] | [INFO] [stderr] = warning: this error has been downgraded to a warning for backwards compatibility with previous releases [INFO] [stderr] = warning: this represents potential undefined behavior in your code and this warning will become a hard error in the future [INFO] [stderr] = note: for more information, try `rustc --explain E0729` [INFO] [stderr] [INFO] [stderr] error: build failed [INFO] running `"docker" "inspect" "54a7606b2c85e3935d0d17f740ec735f6c54a0f5e188e65c081a2f2f47620088"` [INFO] running `"docker" "rm" "-f" "54a7606b2c85e3935d0d17f740ec735f6c54a0f5e188e65c081a2f2f47620088"` [INFO] [stdout] 54a7606b2c85e3935d0d17f740ec735f6c54a0f5e188e65c081a2f2f47620088